ATI Technologies X1900 - Radeon XTX 512 MB PCIE Video Card User Manual page 119

pattern that does a better job of anti-aliasing near-horizontal and near-
vertical edges, resulting in better overall image quality.
Two of the new Super Anti-aliasing modes use a combination of MSAA
and SSAA to achieve the ultimate in image quality. They work by not only
using different multi-sample locations on each GPU, but also by offsetting
the pixel centers slightly. In effect, each GPU renders the image from a
different viewpoint, about half a pixel width apart. The new 10x and 14x
Super Anti-aliasing modes operate in this manner, combining 2x SSAA
with 4x and 6x MSAA, respectively.
Both of these modes work together with SmoothVision™ HD Anisotropic
Filtering (AF).
The new Super Anti-aliasing modes can be enabled by users through the
ATI Catalyst™ Control Center interface.
Note: Enabling the Super Anti-aliasing modes (x8, x10, x12 x14),
disables performance enhancing multi-gpu rendering to provide better
image quality.
CrossFire™ Rendering Modes 111